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The LM45 series are precision integrated-circuit temperaturesensors, whose output voltage is linearly proporTIonal to theCelsius (CenTIgrade) temperature. The LM45 does not requireany external calibraTIon or trimming to provide accuraciesof ±2°C at room temperature and ±3°C over a full −20 to+100°C temperature range. Low cost is assured by trimmingand calibraTIon at the wafer level. The LM45’s low outputimpedance, linear output, and precise inherent calibrationmake interfacing to readout or control circuitry especiallyeasy. It can be used with a single power supply, or with plusand minus supplies. As it draws only 120 μA from its supply,it has very low self-heating, less than 0.2°C in still air. TheLM45 is rated to operate over a −20° to +100°C temperaturerange.
